Home / 14,631.89-20,191.86-7,917.37

Finding the Fourth Proportional to 14,631.89, 20,191.86 and 7,917.37

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Solution

The fourth proportional to 14,631.89, 20,191.86 and 7,917.37 is: 10,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.89 : 20,191.86 = 7,917.37 : x
  2. Step 2: Convert to fraction form
    14,631.89/20,191.86 = 7,917.37/x
  3. Step 3: Cross multiply
    14,631.89x = 20,191.86 × 7,917.37
  4. Step 4: Simplify right side
    14,631.89x = 159,866,376.13
  5. Step 5: Solve for x
    x = 159,866,376.13/14,631.89
  6. Step 6: Final answer
    x = 10,925.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.